staging: fbtft: correct a typo in a comment

Typo in a comment to register write corrected.
Signed-off-by: Anton Gerasimov <anton.gerasimov@openmailbox.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fbtft/fb_ili9320.c

@@ -147,7 +147,7 @@ static int init_display(struct fbtft_par *par)
 	/* Vertical GRAM Start Address */
 	write_reg(par, 0x0052, 0x0000);
 
-	/* Vertical GRAM Start Address */
+	/* Vertical GRAM End Address */
 	write_reg(par, 0x0053, 0x013F);
 
 	/* Gate Scan Line */